the conscious, Psychoanalysis. the part of the mind comprising psychic material of which the individual is aware.

Origin of conscious

1625–35; < Latin conscius sharing knowledge with, equivalent to con- con- + sci- (stem of scīre to know; see science) + -us -ous; cf. nice
Related formscon·scious·ly, adverbhalf-con·scious, adjectivehalf-con·scious·ly, adverbhalf-con·scious·ness, nounnon·con·scious, adjectivenon·con·scious·ly, adverbnon·con·scious·ness, nouno·ver·con·scious, adjectiveo·ver·con·scious·ly, adverbo·ver·con·scious·ness, nounqua·si-con·scious, adjectivequa·si-con·scious·ly, adverb
Can be confusedconscience conscious

Synonyms for conscious

Synonym study

2. Conscious, aware, cognizant refer to an individual sense of recognition of something within or without oneself. Conscious implies to be awake or awakened to an inner realization of a fact, a truth, a condition, etc.: to be conscious of an extreme weariness. Aware lays the emphasis on sense perceptions insofar as they are the object of conscious recognition: He was aware of the odor of tobacco. Cognizant lays the emphasis on an outer recognition more on the level of reason and knowledge than on the sensory level alone: He was cognizant of their drawbacks. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for half-conscious

Contemporary Examples of half-conscious

  • While he was involved with Carr, police found a bloodied, half-conscious woman by his Datsun.

    The Daily Beast logo
    Arizona’s Serial-Killer Saga

    Terry Greene Sterling

    October 20, 2011

Historical Examples of half-conscious

  • At last his tap at the door roused me from this half-conscious state.

  • Her state had been more like an imperfect, half-conscious, quivering death.

    The Rescue

    Joseph Conrad

  • "Oh, oh," he moaned, only half-conscious now of what they were doing.


    Robert Sheckley

  • Half-conscious as she was, she was struggling to prevent the abduction.

    The Green Rust

    Edgar Wallace

  • "I left him half-conscious, on the floor of the reception-room," replied Duncan, calmly.

    The Last Woman

    Ross Beeckman

British Dictionary definitions for half-conscious



only partially alert and awake



  1. alert and awake; not sleeping or comatose
  2. aware of one's surroundings, one's own thoughts and motivations, etc
  1. aware of and giving value or emphasis to a particular fact or phenomenonI am conscious of your great kindness to me
  2. (in combination)clothes-conscious
done with full awareness; deliberatea conscious effort; conscious rudeness
  1. denoting or relating to a part of the human mind that is aware of a person's self, environment, and mental activity and that to a certain extent determines his choices of action
  2. (as noun)the conscious is only a small part of the mind
Compare unconscious
Derived Formsconsciously, adverbconsciousness, noun

Word Origin for conscious

C17: from Latin conscius sharing knowledge, from com- with + scīre to know
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for half-conscious



c.1600, "knowing, privy to," from Latin conscius "knowing, aware," from conscire (see conscience); probably a loan-translation of Greek syneidos. A word adopted from the Latin poets and much mocked at first. Sense of "active and awake" is from 1837.

Online Etymology Dictionary, © 2010 Douglas Harper

half-conscious in Medicine




Having an awareness of one's environment and one's own existence, sensations, and thoughts.
Intentionally conceived or done; deliberate.


In psychoanalysis, the component of waking awareness perceptible by a person at any given instant.
Related formsconscious•ly adv.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.